Coconut fibers and quartzite wastes for fiber-cement production by extrusion
| Autor: | Camila Soares Fonseca, Lourival Marin Mendes, Mário Vanoli Scatolino, Danillo Wisky Silva, Tony Matheus Carvalho Eugênio, Isabelle Cristine de Carvalho Terra, Lina Bufalino, Tamires Galvão Tavares Pereira, Rafael Farinassi Mendes |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Cement
Zirconium Materials science 020209 energy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Pulp and paper industry chemistry.chemical_compound chemistry Cocos nucifera 0202 electrical engineering electronic engineering information engineering Lignin Extrusion Fiber Cellulose 0210 nano-technology Chemical composition |
| Zdroj: | Materials Today: Proceedings. 31:S309-S314 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.01.394 |
| Popis: | Brazil is worldwide known by production and commercialization of ornamental rocks and its characteristics of great agricultural production. However, along with these productions, tons of wastes are produced and incorrectly abandoned each year. In this sense, the use of these industrial or agricultural wastes in the construction sector is an environmentally correct and economically suitable option. The present study aimed to characterize quartzite wastes and coconut fibers (Cocos nucifera) to be used as reinforcement in cementitious matrix composites, in intention of reducing the fragility of these materials and improve its mechanical properties. The basic density and chemical characterization of the coconut fibers were performed. The Inhibition index of cement solidification, quartzite chemical composition and granulometry were also evaluated. The chemical analysis of the quartzite showed the high percentage of silicon, followed by zirconium and molybdenum, which depends on the region and temperature where it was generated. The granulometric analysis showed that the quartzite of this research was mostly powdered. The chemical analysis of the coconut fiber confirmed the low percentage of extractives (3.38%) what would be a positive factor low for production of composites besides the high content of lignin and cellulose, which could provide an increase in the mechanical properties of the fiber-cement. Coconut fiber showed low inhibition index ( |
| Databáze: | OpenAIRE |
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